Lee Hu-bin built on-site experience working in the directing department and as an assistant director, starting with the film Take Off in 2009, followed by Eungyo (2012), The Berlin File (2013), Master (2016), and Hit-and-Run Squad (2019). He served as the B-unit director for the Netflix series Black Knight (2023) and The Traumcode: Heroes on Call (2025), and co-directed the series No Way Out: The Roulette (2024), released via LG U+ and Disney+.